Combariza, L. F., Neira, C. A., Fischer, G., Corredor, G. and Quintero, Ómar C. (2011) “Pineapple guava [Acca sellowiana (O.Berg) Burret] growth, production and fruit quality in response to potassium nitrate, potassium phosphate and ethephon”, Revista Colombiana de Ciencias Hortícolas, 1(2), pp. 170–181. doi: 10.17584/rcch.2007v1i2.1158.